PHY9A Lecture Notes - Lecture 1: Friction
Document Summary
Practice problems on forces: in the figure to the right, m = 20. 0 kg and = 53. 1 . The coefficient of kinetic friction between the block of mass m and the incline is = 0. 40. The coefficient of kinetic friction between the 4. 00-kg block and the plane is 0. 25; that between the 8. 00 kg block and the plane is 0. 35. Calculate reversed, so that the 4. 00 kg block is uphill from the. 8. 00 kg block? the acceleration of each block the tension in the string. What happens if the positions of the blocks are: an 8. 00-kg box sits on a ramp that is inclined at 33. 0 above the horizontal. The coefficient of kinetic friction between the box and the surface of the ramp is = 0. 300. A constant horizontal force f = 26. 0 n is applied to the box (figure to the right), and the box moves down the ramp.
